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<strong>IMPORTANT</strong>: No additional bug fixes or documentation updates
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<div class="part">
<div class="titlepage"><div><div>
<h1 class="title">
<a id="setup-upgrade"></a>Upgrade Elasticsearch<a class="edit_me edit_me_private" rel="nofollow" title="Editing on GitHub is available to Elastic" href="https://github.com/elastic/elasticsearch/edit/7.7/docs/reference/upgrade.asciidoc">edit</a>
</h1>
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<div class="openblock partintro">
<div class="content">
<p>Elasticsearch can usually be upgraded using a <a class="xref" href="rolling-upgrades.html" title="Rolling upgrades">Rolling upgrade</a>
process so upgrading does not interrupt service. Rolling upgrades are supported:</p>
<div class="ulist itemizedlist">
<ul class="itemizedlist">
<li class="listitem">
Between minor versions
</li>
<li class="listitem">
From 5.6 to 6.8
</li>
<li class="listitem">
From 6.8 to 7.7.1
</li>
<li class="listitem">
From any version since 7.7.0 to 7.7.1
</li>
</ul>
</div>
<div class="tip admon">
<div class="icon"></div>
<div class="admon_content">
<p>For rolling upgrades between major versions (e.g., 5.6 to 6.8), we recommend
using the <a href="/guide/en/kibana/7.7/upgrade-assistant.html" class="ulink" target="_top">Kibana Upgrade Assistant</a>.</p>
<p>The upgrade assistant identifies deprecated settings in your cluster and guides
you through the process of resolving issues, including reindexing.</p>
<p>We also recommend checking your <a class="xref" href="logging.html#deprecation-logging" title="Deprecation logging">deprecation logs</a> for any
other functionality that may have changed.</p>
</div>
</div>
<p>The following table shows the recommended upgrade paths to 7.7.1.</p>
<div class="informaltable">
<table border="1" cellpadding="4px">
<colgroup>
<col class="col_1">
<col class="col_2">
</colgroup>
<thead>
<tr>
<th align="left" valign="top">Upgrade from</th>
<th align="left" valign="top">Recommended upgrade path to 7.7.1</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left" valign="top"><p>A previous 7.7 version (e.g., 7.7.0)</p></td>
<td align="left" valign="top"><p><a class="xref" href="rolling-upgrades.html" title="Rolling upgrades">Rolling upgrade</a> to 7.7.1</p></td>
</tr>
<tr>
<td align="left" valign="top"><p>7.0–7.6</p></td>
<td align="left" valign="top"><p><a class="xref" href="rolling-upgrades.html" title="Rolling upgrades">Rolling upgrade</a> to 7.7.1</p></td>
</tr>
<tr>
<td align="left" valign="top"><p>6.8</p></td>
<td align="left" valign="top"><p><a class="xref" href="rolling-upgrades.html" title="Rolling upgrades">Rolling upgrade</a> to 7.7.1</p></td>
</tr>
<tr>
<td align="left" valign="top"><p>6.0–6.7</p></td>
<td align="left" valign="top">
<div class="olist orderedlist">
<ol class="orderedlist">
<li class="listitem">
<a href="/guide/en/elasticsearch/reference/6.8/rolling-upgrades.html" class="ulink" target="_top">Rolling upgrade</a> to 6.8
</li>
<li class="listitem">
<a class="xref" href="rolling-upgrades.html" title="Rolling upgrades">Rolling upgrade</a> to 7.7.1
</li>
</ol>
</div>
</td>
</tr>
<tr>
<td align="left" valign="top"><p>5.6</p></td>
<td align="left" valign="top">
<div class="olist orderedlist">
<ol class="orderedlist">
<li class="listitem">
<a href="/guide/en/elasticsearch/reference/6.8/rolling-upgrades.html" class="ulink" target="_top">Rolling upgrade</a> to 6.8
</li>
<li class="listitem">
<a class="xref" href="rolling-upgrades.html" title="Rolling upgrades">Rolling upgrade</a> to 7.7.1
</li>
</ol>
</div>
</td>
</tr>
<tr>
<td align="left" valign="top"><p>5.0–5.5</p></td>
<td align="left" valign="top">
<div class="olist orderedlist">
<ol class="orderedlist">
<li class="listitem">
<a href="/guide/en/elasticsearch/reference/5.6/rolling-upgrades.html" class="ulink" target="_top">Rolling upgrade</a> to 5.6
</li>
<li class="listitem">
<a href="/guide/en/elasticsearch/reference/6.8/rolling-upgrades.html" class="ulink" target="_top">Rolling upgrade</a> to 6.8
</li>
<li class="listitem">
<a class="xref" href="rolling-upgrades.html" title="Rolling upgrades">Rolling upgrade</a> to 7.7.1
</li>
</ol>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div class="warning admon">
<div class="icon"></div>
<div class="admon_content">
<p>The upgrade path from 6.8 to 7.0 is <span class="strong strong"><strong>not</strong></span> supported (both full cluster restart and rolling upgrade).</p>
</div>
</div>
<p>To upgrade directly to 7.7.1 from 6.7 or earlier, you must shut down the
cluster, install 7.7.1, and restart. For more information, see
<a class="xref" href="restart-upgrade.html" title="Full cluster restart upgrade">Full cluster restart upgrade</a>.</p>
<div class="warning admon">
<div class="icon"></div>
<div class="admon_content">
<p>In-place downgrades to earlier versions are <span class="strong strong"><strong>not</strong></span> supported. To downgrade to an
earlier version, <a class="xref" href="snapshots-restore-snapshot.html" title="Restore indices from a snapshot">restore a snapshot</a> taken prior
to the version upgrade.</p>
</div>
</div>
<p>Elasticsearch can read indices created in the previous major version. If you
have indices created in 5.x or before, you must reindex or delete them
before upgrading to 7.7.1. Elasticsearch nodes will fail to start if
incompatible indices are present. Snapshots of 5.x or earlier indices cannot be
restored to a 7.x cluster even if they were created by a 6.x cluster. For
information about upgrading old indices, see <a class="xref" href="reindex-upgrade.html" title="Reindex before upgrading">Reindex to upgrade</a>.</p>
<p>When upgrading to a new version of Elasticsearch, you need to upgrade each
of the products in your Elastic Stack. For more information, see the
<a href="/guide/en/elastic-stack/7.7/upgrading-elastic-stack.html" class="ulink" target="_top">Elastic Stack Installation and Upgrade Guide</a>.</p>
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